diff --git a/packages/web/src/datagrid/DataGridCore.svelte b/packages/web/src/datagrid/DataGridCore.svelte
index ccc8ef1a7..2f1c15073 100644
--- a/packages/web/src/datagrid/DataGridCore.svelte
+++ b/packages/web/src/datagrid/DataGridCore.svelte
@@ -190,6 +190,7 @@
   export let allRowCount = undefined;
   export let onReferenceSourceChanged = undefined;
   export let onReferenceClick = undefined;
+  export let onSelectionChanged = undefined;
   export let onSave;
   export let focusOnVisible = false;
   export let onExportGrid = null;
@@ -417,6 +418,30 @@
     domFocusField.focus();
   }
 
+  const lastPublishledRef = { current: '' };
+  $: if (onSelectionChanged) {
+    const published = getCellsPublished(selectedCells);
+    const stringified = stableStringify(published);
+    if (lastPublishledRef.current != stringified) {
+      // console.log('PUBLISH', published);
+      // console.log('lastPublishledRef.current', lastPublishledRef.current);
+      // console.log('stringified', stringified);
+      lastPublishledRef.current = stringified;
+      onSelectionChanged(published);
+    }
+  }
+
+  function getCellsPublished(cells) {
+    const regular = cellsToRegularCells(cells);
+    // @ts-ignore
+    return regular
+      .map(cell => ({
+        row: cell[0],
+        column: realColumnUniqueNames[cell[1]],
+      }))
+      .filter(x => x.column);
+  }
+
   function scrollIntoView(cell) {
     const [row, col] = cell;
 
diff --git a/packages/web/src/freetable/FreeTableGrid.svelte b/packages/web/src/freetable/FreeTableGrid.svelte
index 2de33ac78..8dcd3f287 100644
--- a/packages/web/src/freetable/FreeTableGrid.svelte
+++ b/packages/web/src/freetable/FreeTableGrid.svelte
@@ -1,5 +1,6 @@
 <script lang="ts" context="module">
   function extractMacroValuesForMacro(macroValues, macro) {
+    // return {};
     if (!macro) return {};
     return {
       ..._.fromPairs((macro.args || []).filter(x => x.default != null).map(x => [x.name, x.default])),
@@ -28,6 +29,7 @@
   export let dispatchModel;
 
   let managerSize;
+  let selectedCellsPublished = [];
 
   const selectedMacro = writable(null);
   setContext('selectedMacro', selectedMacro);
@@ -37,10 +39,10 @@
   const handleExecuteMacro = () => {
     const newModel = runMacro(
       $selectedMacro,
-      extractMacroValuesForMacro(macroValues, selectedMacro),
+      extractMacroValuesForMacro($macroValues, $selectedMacro),
       modelState.value,
       false,
-      [] // selectedCells
+      selectedCellsPublished
     );
     dispatchModel({ type: 'set', value: newModel });
     $selectedMacro = null;
@@ -62,7 +64,13 @@
   <div class="grid" slot="2">
     <VerticalSplitter initialValue="70%" isSplitter={!!$selectedMacro}>
       <svelte:fragment slot="1">
-        <FreeTableGridCore {...$$props} />
+        <FreeTableGridCore
+          {...$$props}
+          onSelectionChanged={value => (selectedCellsPublished = value)}
+          macroValues={extractMacroValuesForMacro($macroValues, $selectedMacro)}
+          {selectedCellsPublished}
+          macroPreview={$selectedMacro}
+        />
       </svelte:fragment>
 
       <!-- macroPreview={selectedMacro}
diff --git a/packages/web/src/freetable/FreeTableGridCore.svelte b/packages/web/src/freetable/FreeTableGridCore.svelte
index e719f3e25..456f0c115 100644
--- a/packages/web/src/freetable/FreeTableGridCore.svelte
+++ b/packages/web/src/freetable/FreeTableGridCore.svelte
@@ -16,12 +16,12 @@
   export let macroValues;
   export let config;
   export let setConfig;
+  export let selectedCellsPublished;
 
-  let selectedCells = [];
   const cache = writable(createGridCache());
 
   $: grider = macroPreview
-    ? new MacroPreviewGrider(modelState.value, macroPreview, macroValues, selectedCells)
+    ? new MacroPreviewGrider(modelState.value, macroPreview, macroValues, selectedCellsPublished)
     : new FreeTableGrider(modelState, dispatchModel);
   $: display = new FreeTableGridDisplay(grider.model || modelState.value, config, setConfig, $cache, cache.update);
 
diff --git a/packages/web/src/freetable/MacroDetail.svelte b/packages/web/src/freetable/MacroDetail.svelte
index 1bbb857af..f58efa16b 100644
--- a/packages/web/src/freetable/MacroDetail.svelte
+++ b/packages/web/src/freetable/MacroDetail.svelte
@@ -19,6 +19,9 @@
       {
         label: 'Macro detail',
         component: MacroInfoTab,
+        props: {
+          onExecute,
+        },
       },
       {
         label: 'JavaScript',